Software

I do virtually all of my work using some variety of UNIX. Since 1995, this has generally been
GNU/LINUX. Software
that I have written is therefore known to run under GNU/Linux and sometimes under
other varieties of UNIX. Most of the time software written for GNU/Linux
will run on other varieties of UNIX. Often it will run on other POSIX-compliant
systems. Software written in languages like Tcl and Python
will generally run on any system for which there is an interpreter, including non-UNIX
systems.

I
hold the copyright to all software on this page.
All of the software provided here is free software, in most cases
licensed under the GNU General Public License.

These two programs generate charts of the Unicode character set in the form
of web pages. Of course, whether a glyph will actually be displayed at a
particular codepoint depends on whether that codepoint is currently defined
and whether the user's system has the font necessary to display it.

MkUnicodeChart generates the entire chart as a single large (3.2MB) web page.
This is convenient for scrolling around and exploring the chart, but the chart
is so large and complex to render that there is a noticable delay when starting
up. I am also told that it will crash Internet Explorer. I haven't verified
this since I don't use Internet Explorer.
It doesn't crash Galeon,
which is the browser I use, but it does take a while.

MkUnicodeCharts breaks the chart into numerous separate files, one for each block
of 256 characters, and generates an index page called UnicodeIndex.html
that provides links to the individual files. This isn't quite as nice for browsing,
but it loads immediately and doesn't stress the browser.

Computes a variety of measures of dynamism of an F0 contour.
This program was originally written for the research reported by
Rudy Gaudio in his paper "Sounding Gay: Pitch Properties in the Speech of Gay and Straight Men,"
American Speech 69.1.30-57 (1994).

Phonetic notation deviating in certain respects from the International Phonetic Alphabet is widely
used in North America. This program translates "North American IPA" in UTF-8 Unicode into
standard IPA. The mapping performed is:

Translates a Unicode file from the Tigrinya writing system to the
International Phonetic Alphabet. This version fixes some bugs and
adds transliteration of the old glottalized alveolar affricate series
and for the old numeral 10,000.

On Unix systems time is kept in seconds since the "Unix epoch", the beginning of Unix time,
at midnight, January 1, 1970. The POSIX standard requires that this time be kept in a
signed integer, so on systems using a 32 bit integer for the time, the maximum
time is 2,147,483,647. This corresponds to 03:14.07 on Tuesday, January 19, 2038.
In order to avoid this "Year 2038" problem it is necessary to use a 64 bit integer.
The date corresponding to the largest signed 64 bit integer is over 200 billion years
in the future. Some systems use one or two bits for other purposes and so roll over
even sooner. This little program checks how many bits the system on which it is run is using.
Be prepared!